| /e/OS | Gaël Duval, E Foundation | 2018 | MIT License, Apache Software License 2.0 |
| AICP | — | — | — |
| Android | Google | — | Apache Software License 2.0, GNU General Public License, version 2.0 |
| Android 10 | Google, Open Handset Alliance | 2019 | Apache License |
| Android 12 | Google | — | proprietary license |
| Android 13 | Open Handset Alliance, Google | — | — |
| Android 14 | Google | — | — |
| Android 15 | Google | — | — |
| Android Canary | — | 2025 | — |
| Android Cupcake | Google | — | — |
| Android Donut | Google | — | — |
| Android Eclair | Google | — | — |
| Android Froyo | Google | — | — |
| Android Gingerbread | Google | 2010 | — |
| Android Go | — | 2017 | — |
| Android Honeycomb | Google | — | — |
| Android Ice Cream Sandwich | Google | — | — |
| Android Jelly Bean | Google | — | — |
| Android KitKat | Open Handset Alliance, Google | — | Apache License, GNU General Public License |
| Android Lollipop | — | 2014 | Apache Software License 2.0, Android Open Source Project, GNU General Public License, version 2.0 |
| Android Marshmallow | Open Handset Alliance, Google | — | free software, Android Open Source Project |
| Android Nougat | Google, Open Handset Alliance | 2016 | Android Open Source Project |
| Android Oreo | Google, Open Handset Alliance | 2017 | Android Open Source Project, Apache License |
| AOKP | George Merlocco | — | Apache License |
| AospExtended | — | 2017 | — |
| AsteroidOS | — | — | — |
| Atomic-OS | — | 2017 | — |
| Aurora OS | — | — | — |
| B2G OS | — | — | Mozilla Public License |
| Bada | Samsung Electronics | — | proprietary license |
| BharOS | Indian Institute of Technology Madras | — | — |
| Binary Runtime Environment for Wireless | Qualcomm | — | — |
| BlackBerry 10 | BlackBerry | — | proprietary license |
| Bliss OS | — | — | GNU General Public License, version 3.0 |
| CalyxOS | Calyx Institute | 2020 | — |
| CarbonROM | — | — | — |
| ColorOS | Oppo | — | — |
| ColtOS | — | — | — |
| CopperheadOS | — | 2015 | Creative Commons |
| CrDroid | — | — | — |
| CyanogenMod | CYNGN Inc. | 2009 | Android Open Source Project, Apache License, GNU General Public License |
| DarkNess reDefined | — | 2017 | — |
| Dirty Unicorns | — | 2012 | GNU General Public License, version 2.0, GNU General Public License, version 3.0 |
| DivestOS | — | — | — |
| DotOS | — | 2017 | — |
| EPOC | Psion | 1989 | — |
| Fira OS | — | — | — |
| Firefox OS | Mozilla Foundation, Mozilla Corporation | — | Mozilla Public License, Apache License, free license |